Note: This publication is currently undergoing major revisions. The current publication will be replaced with a new publication based on stakeholder requirements and scientific advances. We expect to begin sharing details on this soon. If you have input on content, format, or publication frequency at any time, please contact us at email@example.com.Upper Colorado Water Supply Outlook, January 1, 2008
Upper Colorado Water Supply Outlook, January 1, 2008
December was exceptionally wet across the Upper Colorado Basin, especially in
the Gunnison and Dolores basins where several individual precipitation stations
received more than 300% of average for the month.
*Median of forecasts within each basin.
Upper Colorado Mainstem Basin Conditions
The 2008 water year started with above average precipitation for October, but
then November was just 30% of average. December made up for that with 170% of
average precipitation for the month, leaving both the seasonal precipitation
and snow water equivalent near normal as of January 1. The April through July
streamflow forecasts now range between 85% and 105% of average.
Precipitation in the Gunnison Basin for October was 86% of average. It was
then a dry November with the basin receiving 28% of the monthly average.
However, in December the basin received 215% of the monthly average
precipitation allowing the seasonal average precipitation for the beginning
of January to climb back to 116%. Streamflow forecasts for April through July
currently range between 105% and 120% of average.
It was a slow beginning to the 2008 water year in the Dolores Basin. In
October the basin saw 66% of the monthly average precipitation and in November
just 29%. December more than made up for the light precipitation in October
and November with the basin receiving 260% of the December monthly average.
This has brought the basin back above average precipitation for the season to
112% of the seasonal average as of January 1. Streamflow
forecasts for April through July currently range between 110% and 115% of